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    Ignition timing control method for internal combustion engines
    5.
    发明授权
    Ignition timing control method for internal combustion engines 失效
    内燃机点火正时控制方法

    公开(公告)号：US4702211A

    公开(公告)日：1987-10-27

    申请号：US819502

    申请日：1986-01-15

    申请人： Akira Kato ,  Hisashi Igarashi ,  Tadashi Umeda

    发明人： Akira Kato ,  Hisashi Igarashi ,  Tadashi Umeda

    IPC分类号： F02P5/15 ,  F02P5/14

    CPC分类号： F02P5/1508 ,  Y02T10/46

    摘要： An ignition timing control method for an internal combustion engine, which controls the ignition timing, on the basis of a basic ignition timing value determined as a function of operating parameters of the engine. When a detected parameter value indicative of engine temperature is lower than a predetermined value, a correction variable for the basic ignition timing value is determined based upon detected parameter values indicative of engine temperature and engine load magnitude, to correct the basic ignition timing value thereby. Ignition of the mixture is effected at a timing according to the corrected basic ignition timing value. Preferably, when detected engine rotational speed is lower than a predetermined value lower than the engine idling speed or when it is higher than a predetermined high rotational speed value, the correction of the basic ignition timing value by the correction variable is prohibited.

    摘要翻译： 基于作为发动机的运转参数确定的基本点火正时值的内燃机的点火正时控制方法，其控制点火正时。 当检测到的指示发动机温度的参数值低于预定值时，基于检测到的指示发动机温度和发动机负载大小的参数值来确定基本点火正时值的校正变量，从而校正基本点火正时值。 在根据校正的基本点火正时值的定时进行混合物的点火。 优选地，当检测到的发动机转速低于低于发动机空转速度的预定值时，或者当其高于预定的高转速值时，禁止基准点火正时值由校正变量的校正。

    Air-to-fuel ratio control device
    7.
    发明授权
    Air-to-fuel ratio control device 失效
    空燃比控制装置

    公开(公告)号：US06223121B1

    公开(公告)日：2001-04-24

    申请号：US09245022

    申请日：1999-02-05

    申请人： Akira Ishida ,  Masuo Takigawa ,  Toru Kitamura ,  Akira Kato ,  Naohiro Kurokawa

    发明人： Akira Ishida ,  Masuo Takigawa ,  Toru Kitamura ,  Akira Kato ,  Naohiro Kurokawa

    IPC分类号： F02D4500

    CPC分类号： F02D41/1405 ,  F02D2041/1415 ,  F02D2041/1433

    摘要： A control device for controlling an air-to-fuel ratio when fuel is injected in an internal combustion engine, comprises: a state detecting unit for detecting parameters representing operating states of the internal combustion engine; a counting unit for counting the number of times of explosion in a cylinder just after the engine starts; and a unit for estimating an air-to-fuel ratio just after the engine starts from the operating state parameters and the number of times of explosion.

    摘要翻译： 一种用于在内燃机中喷射燃料时控制空燃比的控制装置，包括：状态检测单元，用于检测表示内燃机运行状态的参数; 计数单元，用于计算发动机起动之后的气缸中的爆炸次数; 以及用于从运行状态参数和爆炸次数估计发动机起动后的空燃比的单元。

    Air-fuel ratio control system for internal combustion engines
    8.
    发明授权
    Air-fuel ratio control system for internal combustion engines 失效
    内燃机空燃比控制系统

    公开(公告)号：US5947096A

    公开(公告)日：1999-09-07

    申请号：US937747

    申请日：1997-09-25

    申请人： Naohiro Kurokawa ,  Toru Kitamura ,  Akira Kato

    发明人： Naohiro Kurokawa ,  Toru Kitamura ,  Akira Kato

    IPC分类号： F02D41/00 ,  F02D41/14 ,  F02D41/22 ,  F02D41/34 ,  F02D41/36

    CPC分类号： F02D41/008 ,  F02D41/1401 ,  F02D41/1456 ,  F02D41/1458 ,  F02D2041/1409 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1417 ,  F02D2041/1418 ,  F02D2041/1431 ,  F02D2041/1433

    摘要： An air-fuel ratio control system for an internal combustion engine includes an air-fuel ratio sensor for detecting the air-fuel ratio of exhaust gases from the engine. An ECU estimates the air-fuel ratio of a mixture supplied to each of the cylinders cylinder by cylinder in response to an output from the air-fuel ratio sensor, by using an observer based on a model representative of the behavior of the exhaust system. Cylinder-by-cylinder air-fuel ratio control amounts corresponding respectively to the cylinders are calculated for carrying out feedback control of the air-fuel ratio of the mixture such that each of the estimated air-fuel ratio is converged to a desired value. One of the cylinder-by-cylinder air-fuel ratio control amounts corresponding to one of the cylinders is held at a predetermined value, and it is determined whether relationships in value between ones of the cylinder-by-cylinder air-fuel ratio control amounts corresponding respectively to cylinders other than the one cylinder and a plurality of predetermined determination values meet a predetermined determination pattern. When the relationships meet the predetermined determination pattern, it is determined that the response speed of the air-fuel ratio sensor has changed.

    摘要翻译： 用于内燃机的空燃比控制系统包括用于检测来自发动机的废气的空燃比的空燃比传感器。 ECU基于来自空燃比传感器的输出，通过使用基于表示排气系统的行为的模型的观察者来估计供给到每个汽缸的气缸的气体的空燃比。 计算分别对应于气缸的圆柱体空燃比控制量，以进行混合物的空燃比的反馈控制，使得每个估计空燃比收敛到期望值。 将与其中一个气缸相对应的逐个缸体空燃比控制量中的一个保持在预定值，并且确定是否在每个缸缸空燃比控制量之间的值之间的关系 分别对应于一个气缸以外的气缸，并且多个预定的确定值满足预定的确定模式。 当这些关系满足预定的确定模式时，确定空燃比传感器的响应速度已经改变。

    Air-fuel ratio control system for internal combustion engines
    9.
    发明授权
    Air-fuel ratio control system for internal combustion engines 失效
    内燃机空燃比控制系统

    公开(公告)号：US5884613A

    公开(公告)日：1999-03-23

    申请号：US937379

    申请日：1997-09-25

    申请人： Toru Kitamura ,  Akira Kato ,  Naohiro Kurokama

    发明人： Toru Kitamura ,  Akira Kato ,  Naohiro Kurokama

    IPC分类号： F02D45/00 ,  F02D41/14

    CPC分类号： F02D41/1441 ,  F02D41/1402 ,  F02D41/1482 ,  F02D41/1486 ,  F02D2041/1409 ,  F02D2041/1415 ,  F02D2041/1418 ,  F02D2041/142 ,  F02D2041/1426 ,  F02D2041/1433 ,  F02D41/1456

    摘要： An air-fuel ratio control system for an internal combustion engine includes an air-fuel ratio sensor arranged in the exhaust system, for detecting the air-fuel ratio of exhaust gases from the engine. An ECU calculates an air-fuel ratio control amount, based on the output from the air-fuel ratio sensor, by using an adaptive controller having an adaptive parameter-adjusting mechanism for adjusting adaptive parameters, such that the air-fuel ratio of a mixture supplied to the engine is converged to a desired air-fuel ratio, and controls the air-fuel ratio of the mixture in a feedback manner, according to the calculated air-fuel ratio control amount. The adaptive parameter-adjusting mechanism calculates a parameter corresponding to an integral term of the air-fuel ratio control amount, and limit-checks a value of the parameter corresponding to the integral term so as to fall within a predetermined limit range.

    摘要翻译： 用于内燃机的空燃比控制系统包括布置在排气系统中的用于检测来自发动机的废气的空燃比的空燃比传感器。 ECU根据来自空燃比传感器的输出，通过使用具有自适应参数调节机构的自适应控制器来计算空燃比控制量，所述自适应参数调节机构用于调整自适应参数，使得混合物的空燃比 供给到发动机的发动机收敛到期望的空燃比，并且根据计算出的空燃比控制量以反馈方式控制混合物的空燃比。 自适应参数调整机构计算与空燃比控制量的积分项相对应的参数，并且将与积分项对应的参数的值限制在落在预定极限范围内。